Commit | Line | Data |
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1da177e4 LT |
1 | /* vi: ts=8 sw=8 |
2 | * | |
3 | * TI 3410/5052 USB Serial Driver | |
4 | * | |
5 | * Copyright (C) 2004 Texas Instruments | |
6 | * | |
7 | * This driver is based on the Linux io_ti driver, which is | |
8 | * Copyright (C) 2000-2002 Inside Out Networks | |
9 | * Copyright (C) 2001-2002 Greg Kroah-Hartman | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * For questions or problems with this driver, contact Texas Instruments | |
17 | * technical support, or Al Borchers <alborchers@steinerpoint.com>, or | |
18 | * Peter Berger <pberger@brimson.com>. | |
1da177e4 LT |
19 | */ |
20 | ||
1da177e4 LT |
21 | #include <linux/kernel.h> |
22 | #include <linux/errno.h> | |
95da310e | 23 | #include <linux/firmware.h> |
1da177e4 LT |
24 | #include <linux/init.h> |
25 | #include <linux/slab.h> | |
26 | #include <linux/tty.h> | |
27 | #include <linux/tty_driver.h> | |
28 | #include <linux/tty_flip.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ioctl.h> | |
32 | #include <linux/serial.h> | |
074ef65a | 33 | #include <linux/kfifo.h> |
9da0068a | 34 | #include <linux/mutex.h> |
a30fa793 | 35 | #include <linux/uaccess.h> |
1da177e4 | 36 | #include <linux/usb.h> |
a969888c | 37 | #include <linux/usb/serial.h> |
1da177e4 | 38 | |
1da177e4 | 39 | #include "ti_usb_3410_5052.h" |
1da177e4 LT |
40 | |
41 | /* Defines */ | |
42 | ||
074ef65a | 43 | #define TI_DRIVER_VERSION "v0.10" |
1da177e4 LT |
44 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
45 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" | |
46 | ||
47 | #define TI_FIRMWARE_BUF_SIZE 16284 | |
48 | ||
49 | #define TI_WRITE_BUF_SIZE 1024 | |
50 | ||
51 | #define TI_TRANSFER_TIMEOUT 2 | |
52 | ||
1da177e4 LT |
53 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
54 | ||
55 | /* supported setserial flags */ | |
2400a2bf | 56 | #define TI_SET_SERIAL_FLAGS 0 |
1da177e4 LT |
57 | |
58 | /* read urb states */ | |
59 | #define TI_READ_URB_RUNNING 0 | |
60 | #define TI_READ_URB_STOPPING 1 | |
61 | #define TI_READ_URB_STOPPED 2 | |
62 | ||
63 | #define TI_EXTRA_VID_PID_COUNT 5 | |
64 | ||
65 | ||
66 | /* Structures */ | |
67 | ||
68 | struct ti_port { | |
69 | int tp_is_open; | |
70 | __u8 tp_msr; | |
71 | __u8 tp_lsr; | |
72 | __u8 tp_shadow_mcr; | |
73 | __u8 tp_uart_mode; /* 232 or 485 modes */ | |
74 | unsigned int tp_uart_base_addr; | |
75 | int tp_flags; | |
76 | int tp_closing_wait;/* in .01 secs */ | |
77 | struct async_icount tp_icount; | |
78 | wait_queue_head_t tp_msr_wait; /* wait for msr change */ | |
79 | wait_queue_head_t tp_write_wait; | |
80 | struct ti_device *tp_tdev; | |
81 | struct usb_serial_port *tp_port; | |
82 | spinlock_t tp_lock; | |
83 | int tp_read_urb_state; | |
84 | int tp_write_urb_in_use; | |
074ef65a | 85 | struct kfifo write_fifo; |
1da177e4 LT |
86 | }; |
87 | ||
88 | struct ti_device { | |
9da0068a | 89 | struct mutex td_open_close_lock; |
1da177e4 LT |
90 | int td_open_port_count; |
91 | struct usb_serial *td_serial; | |
92 | int td_is_3410; | |
93 | int td_urb_error; | |
94 | }; | |
95 | ||
96 | ||
97 | /* Function Declarations */ | |
98 | ||
99 | static int ti_startup(struct usb_serial *serial); | |
f9c99bb8 | 100 | static void ti_release(struct usb_serial *serial); |
a509a7e4 | 101 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
335f8514 | 102 | static void ti_close(struct usb_serial_port *port); |
95da310e | 103 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
a30fa793 | 104 | const unsigned char *data, int count); |
95da310e AC |
105 | static int ti_write_room(struct tty_struct *tty); |
106 | static int ti_chars_in_buffer(struct tty_struct *tty); | |
107 | static void ti_throttle(struct tty_struct *tty); | |
108 | static void ti_unthrottle(struct tty_struct *tty); | |
a30fa793 AC |
109 | static int ti_ioctl(struct tty_struct *tty, struct file *file, |
110 | unsigned int cmd, unsigned long arg); | |
0bca1b91 AC |
111 | static int ti_get_icount(struct tty_struct *tty, |
112 | struct serial_icounter_struct *icount); | |
a30fa793 AC |
113 | static void ti_set_termios(struct tty_struct *tty, |
114 | struct usb_serial_port *port, struct ktermios *old_termios); | |
95da310e AC |
115 | static int ti_tiocmget(struct tty_struct *tty, struct file *file); |
116 | static int ti_tiocmset(struct tty_struct *tty, struct file *file, | |
a30fa793 | 117 | unsigned int set, unsigned int clear); |
95da310e | 118 | static void ti_break(struct tty_struct *tty, int break_state); |
7d12e780 DH |
119 | static void ti_interrupt_callback(struct urb *urb); |
120 | static void ti_bulk_in_callback(struct urb *urb); | |
121 | static void ti_bulk_out_callback(struct urb *urb); | |
1da177e4 LT |
122 | |
123 | static void ti_recv(struct device *dev, struct tty_struct *tty, | |
124 | unsigned char *data, int length); | |
125 | static void ti_send(struct ti_port *tport); | |
126 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); | |
127 | static int ti_get_lsr(struct ti_port *tport); | |
128 | static int ti_get_serial_info(struct ti_port *tport, | |
129 | struct serial_struct __user *ret_arg); | |
4a90f09b | 130 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
131 | struct serial_struct __user *new_arg); |
132 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr); | |
133 | ||
134 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush); | |
135 | ||
136 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); | |
137 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); | |
138 | ||
139 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
140 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
141 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
142 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
143 | ||
144 | static int ti_write_byte(struct ti_device *tdev, unsigned long addr, | |
145 | __u8 mask, __u8 byte); | |
146 | ||
05a3d905 | 147 | static int ti_download_firmware(struct ti_device *tdev); |
1da177e4 | 148 | |
1da177e4 LT |
149 | |
150 | /* Data */ | |
151 | ||
152 | /* module parameters */ | |
153 | static int debug; | |
1da177e4 LT |
154 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
155 | static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; | |
64a6f950 | 156 | static unsigned int vendor_3410_count; |
1da177e4 | 157 | static ushort product_3410[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 158 | static unsigned int product_3410_count; |
1da177e4 | 159 | static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 160 | static unsigned int vendor_5052_count; |
1da177e4 | 161 | static ushort product_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 162 | static unsigned int product_5052_count; |
1da177e4 LT |
163 | |
164 | /* supported devices */ | |
165 | /* the array dimension is the number of default entries plus */ | |
166 | /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ | |
167 | /* null entry */ | |
cdc04834 | 168 | static struct usb_device_id ti_id_table_3410[13+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 169 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 170 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
171 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
172 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
173 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
174 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
175 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
176 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
178 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1a1fab51 | 179 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
180 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
181 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
1da177e4 LT |
182 | }; |
183 | ||
97dcf041 | 184 | static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 LT |
185 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
186 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
187 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
188 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
189 | }; | |
190 | ||
cdc04834 | 191 | static struct usb_device_id ti_id_table_combined[17+2*TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 192 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 193 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
194 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
195 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
196 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
197 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
198 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
199 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
200 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
201 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1da177e4 LT |
202 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
203 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
204 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
205 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
1a1fab51 | 206 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
207 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
208 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
1da177e4 LT |
209 | { } |
210 | }; | |
211 | ||
212 | static struct usb_driver ti_usb_driver = { | |
1da177e4 LT |
213 | .name = "ti_usb_3410_5052", |
214 | .probe = usb_serial_probe, | |
215 | .disconnect = usb_serial_disconnect, | |
216 | .id_table = ti_id_table_combined, | |
ba9dc657 | 217 | .no_dynamic_id = 1, |
1da177e4 LT |
218 | }; |
219 | ||
ea65370d | 220 | static struct usb_serial_driver ti_1port_device = { |
18fcac35 | 221 | .driver = { |
269bda1c GKH |
222 | .owner = THIS_MODULE, |
223 | .name = "ti_usb_3410_5052_1", | |
18fcac35 | 224 | }, |
269bda1c | 225 | .description = "TI USB 3410 1 port adapter", |
d9b1b787 | 226 | .usb_driver = &ti_usb_driver, |
1da177e4 | 227 | .id_table = ti_id_table_3410, |
1da177e4 LT |
228 | .num_ports = 1, |
229 | .attach = ti_startup, | |
f9c99bb8 | 230 | .release = ti_release, |
1da177e4 LT |
231 | .open = ti_open, |
232 | .close = ti_close, | |
233 | .write = ti_write, | |
234 | .write_room = ti_write_room, | |
235 | .chars_in_buffer = ti_chars_in_buffer, | |
236 | .throttle = ti_throttle, | |
237 | .unthrottle = ti_unthrottle, | |
238 | .ioctl = ti_ioctl, | |
239 | .set_termios = ti_set_termios, | |
240 | .tiocmget = ti_tiocmget, | |
241 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 242 | .get_icount = ti_get_icount, |
1da177e4 LT |
243 | .break_ctl = ti_break, |
244 | .read_int_callback = ti_interrupt_callback, | |
245 | .read_bulk_callback = ti_bulk_in_callback, | |
246 | .write_bulk_callback = ti_bulk_out_callback, | |
247 | }; | |
248 | ||
ea65370d | 249 | static struct usb_serial_driver ti_2port_device = { |
18fcac35 | 250 | .driver = { |
269bda1c GKH |
251 | .owner = THIS_MODULE, |
252 | .name = "ti_usb_3410_5052_2", | |
18fcac35 | 253 | }, |
269bda1c | 254 | .description = "TI USB 5052 2 port adapter", |
d9b1b787 | 255 | .usb_driver = &ti_usb_driver, |
1da177e4 | 256 | .id_table = ti_id_table_5052, |
1da177e4 LT |
257 | .num_ports = 2, |
258 | .attach = ti_startup, | |
f9c99bb8 | 259 | .release = ti_release, |
1da177e4 LT |
260 | .open = ti_open, |
261 | .close = ti_close, | |
262 | .write = ti_write, | |
263 | .write_room = ti_write_room, | |
264 | .chars_in_buffer = ti_chars_in_buffer, | |
265 | .throttle = ti_throttle, | |
266 | .unthrottle = ti_unthrottle, | |
267 | .ioctl = ti_ioctl, | |
268 | .set_termios = ti_set_termios, | |
269 | .tiocmget = ti_tiocmget, | |
270 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 271 | .get_icount = ti_get_icount, |
1da177e4 LT |
272 | .break_ctl = ti_break, |
273 | .read_int_callback = ti_interrupt_callback, | |
274 | .read_bulk_callback = ti_bulk_in_callback, | |
275 | .write_bulk_callback = ti_bulk_out_callback, | |
276 | }; | |
277 | ||
278 | ||
279 | /* Module */ | |
280 | ||
281 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); | |
282 | MODULE_DESCRIPTION(TI_DRIVER_DESC); | |
283 | MODULE_VERSION(TI_DRIVER_VERSION); | |
284 | MODULE_LICENSE("GPL"); | |
285 | ||
5f24e2d6 DW |
286 | MODULE_FIRMWARE("ti_3410.fw"); |
287 | MODULE_FIRMWARE("ti_5052.fw"); | |
7df52316 CA |
288 | MODULE_FIRMWARE("mts_cdma.fw"); |
289 | MODULE_FIRMWARE("mts_gsm.fw"); | |
290 | MODULE_FIRMWARE("mts_edge.fw"); | |
cdc04834 AM |
291 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
292 | MODULE_FIRMWARE("mts_mt9234zba.fw"); | |
5f24e2d6 | 293 | |
1da177e4 LT |
294 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
295 | MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); | |
296 | ||
1da177e4 | 297 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
a30fa793 AC |
298 | MODULE_PARM_DESC(closing_wait, |
299 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); | |
1da177e4 LT |
300 | |
301 | module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); | |
a30fa793 AC |
302 | MODULE_PARM_DESC(vendor_3410, |
303 | "Vendor ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 304 | module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); |
a30fa793 AC |
305 | MODULE_PARM_DESC(product_3410, |
306 | "Product ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 307 | module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); |
a30fa793 AC |
308 | MODULE_PARM_DESC(vendor_5052, |
309 | "Vendor ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 | 310 | module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); |
a30fa793 AC |
311 | MODULE_PARM_DESC(product_5052, |
312 | "Product ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 LT |
313 | |
314 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); | |
315 | ||
316 | ||
317 | /* Functions */ | |
318 | ||
319 | static int __init ti_init(void) | |
320 | { | |
05a3d905 | 321 | int i, j, c; |
1da177e4 LT |
322 | int ret; |
323 | ||
1da177e4 | 324 | /* insert extra vendor and product ids */ |
05a3d905 | 325 | c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1; |
52950ed4 | 326 | j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 327 | for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) { |
1da177e4 LT |
328 | ti_id_table_3410[j].idVendor = vendor_3410[i]; |
329 | ti_id_table_3410[j].idProduct = product_3410[i]; | |
330 | ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
331 | ti_id_table_combined[c].idVendor = vendor_3410[i]; |
332 | ti_id_table_combined[c].idProduct = product_3410[i]; | |
333 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 | 334 | } |
52950ed4 | 335 | j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 336 | for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) { |
1da177e4 LT |
337 | ti_id_table_5052[j].idVendor = vendor_5052[i]; |
338 | ti_id_table_5052[j].idProduct = product_5052[i]; | |
339 | ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
340 | ti_id_table_combined[c].idVendor = vendor_5052[i]; |
341 | ti_id_table_combined[c].idProduct = product_5052[i]; | |
342 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 LT |
343 | } |
344 | ||
345 | ret = usb_serial_register(&ti_1port_device); | |
346 | if (ret) | |
347 | goto failed_1port; | |
348 | ret = usb_serial_register(&ti_2port_device); | |
349 | if (ret) | |
350 | goto failed_2port; | |
351 | ||
352 | ret = usb_register(&ti_usb_driver); | |
353 | if (ret) | |
354 | goto failed_usb; | |
355 | ||
c197a8db GKH |
356 | printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":" |
357 | TI_DRIVER_DESC "\n"); | |
1da177e4 LT |
358 | |
359 | return 0; | |
360 | ||
361 | failed_usb: | |
362 | usb_serial_deregister(&ti_2port_device); | |
363 | failed_2port: | |
364 | usb_serial_deregister(&ti_1port_device); | |
365 | failed_1port: | |
366 | return ret; | |
367 | } | |
368 | ||
369 | ||
370 | static void __exit ti_exit(void) | |
371 | { | |
b14de385 | 372 | usb_deregister(&ti_usb_driver); |
1da177e4 LT |
373 | usb_serial_deregister(&ti_1port_device); |
374 | usb_serial_deregister(&ti_2port_device); | |
1da177e4 LT |
375 | } |
376 | ||
377 | ||
378 | module_init(ti_init); | |
379 | module_exit(ti_exit); | |
380 | ||
381 | ||
382 | static int ti_startup(struct usb_serial *serial) | |
383 | { | |
384 | struct ti_device *tdev; | |
385 | struct ti_port *tport; | |
386 | struct usb_device *dev = serial->dev; | |
387 | int status; | |
388 | int i; | |
389 | ||
390 | ||
391 | dbg("%s - product 0x%4X, num configurations %d, configuration value %d", | |
441b62c1 | 392 | __func__, le16_to_cpu(dev->descriptor.idProduct), |
1da177e4 LT |
393 | dev->descriptor.bNumConfigurations, |
394 | dev->actconfig->desc.bConfigurationValue); | |
395 | ||
396 | /* create device structure */ | |
80b6ca48 | 397 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
1da177e4 | 398 | if (tdev == NULL) { |
441b62c1 | 399 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
400 | return -ENOMEM; |
401 | } | |
9da0068a | 402 | mutex_init(&tdev->td_open_close_lock); |
1da177e4 LT |
403 | tdev->td_serial = serial; |
404 | usb_set_serial_data(serial, tdev); | |
405 | ||
406 | /* determine device type */ | |
407 | if (usb_match_id(serial->interface, ti_id_table_3410)) | |
408 | tdev->td_is_3410 = 1; | |
a30fa793 AC |
409 | dbg("%s - device type is %s", __func__, |
410 | tdev->td_is_3410 ? "3410" : "5052"); | |
1da177e4 LT |
411 | |
412 | /* if we have only 1 configuration, download firmware */ | |
413 | if (dev->descriptor.bNumConfigurations == 1) { | |
05a3d905 | 414 | if ((status = ti_download_firmware(tdev)) != 0) |
1da177e4 LT |
415 | goto free_tdev; |
416 | ||
417 | /* 3410 must be reset, 5052 resets itself */ | |
418 | if (tdev->td_is_3410) { | |
419 | msleep_interruptible(100); | |
420 | usb_reset_device(dev); | |
421 | } | |
422 | ||
423 | status = -ENODEV; | |
424 | goto free_tdev; | |
a30fa793 | 425 | } |
1da177e4 | 426 | |
413ba6fb | 427 | /* the second configuration must be set */ |
1da177e4 | 428 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
413ba6fb ON |
429 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
430 | status = status ? status : -ENODEV; | |
1da177e4 LT |
431 | goto free_tdev; |
432 | } | |
433 | ||
434 | /* set up port structures */ | |
435 | for (i = 0; i < serial->num_ports; ++i) { | |
7ac9da10 | 436 | tport = kzalloc(sizeof(struct ti_port), GFP_KERNEL); |
1da177e4 | 437 | if (tport == NULL) { |
441b62c1 | 438 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
439 | status = -ENOMEM; |
440 | goto free_tports; | |
441 | } | |
1da177e4 | 442 | spin_lock_init(&tport->tp_lock); |
a30fa793 AC |
443 | tport->tp_uart_base_addr = (i == 0 ? |
444 | TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); | |
1da177e4 LT |
445 | tport->tp_closing_wait = closing_wait; |
446 | init_waitqueue_head(&tport->tp_msr_wait); | |
447 | init_waitqueue_head(&tport->tp_write_wait); | |
074ef65a JH |
448 | if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, |
449 | GFP_KERNEL)) { | |
441b62c1 | 450 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
451 | kfree(tport); |
452 | status = -ENOMEM; | |
453 | goto free_tports; | |
454 | } | |
455 | tport->tp_port = serial->port[i]; | |
456 | tport->tp_tdev = tdev; | |
457 | usb_set_serial_port_data(serial->port[i], tport); | |
458 | tport->tp_uart_mode = 0; /* default is RS232 */ | |
459 | } | |
a30fa793 | 460 | |
1da177e4 LT |
461 | return 0; |
462 | ||
463 | free_tports: | |
a30fa793 | 464 | for (--i; i >= 0; --i) { |
1da177e4 | 465 | tport = usb_get_serial_port_data(serial->port[i]); |
074ef65a | 466 | kfifo_free(&tport->write_fifo); |
1da177e4 LT |
467 | kfree(tport); |
468 | usb_set_serial_port_data(serial->port[i], NULL); | |
469 | } | |
470 | free_tdev: | |
471 | kfree(tdev); | |
472 | usb_set_serial_data(serial, NULL); | |
473 | return status; | |
474 | } | |
475 | ||
476 | ||
f9c99bb8 | 477 | static void ti_release(struct usb_serial *serial) |
1da177e4 LT |
478 | { |
479 | int i; | |
480 | struct ti_device *tdev = usb_get_serial_data(serial); | |
481 | struct ti_port *tport; | |
482 | ||
441b62c1 | 483 | dbg("%s", __func__); |
1da177e4 | 484 | |
a30fa793 | 485 | for (i = 0; i < serial->num_ports; ++i) { |
1da177e4 LT |
486 | tport = usb_get_serial_port_data(serial->port[i]); |
487 | if (tport) { | |
074ef65a | 488 | kfifo_free(&tport->write_fifo); |
1da177e4 | 489 | kfree(tport); |
1da177e4 LT |
490 | } |
491 | } | |
492 | ||
1bc3c9e1 | 493 | kfree(tdev); |
1da177e4 LT |
494 | } |
495 | ||
496 | ||
a509a7e4 | 497 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
498 | { |
499 | struct ti_port *tport = usb_get_serial_port_data(port); | |
500 | struct ti_device *tdev; | |
501 | struct usb_device *dev; | |
502 | struct urb *urb; | |
503 | int port_number; | |
504 | int status; | |
a30fa793 AC |
505 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
506 | TI_PIPE_TIMEOUT_ENABLE | | |
1da177e4 LT |
507 | (TI_TRANSFER_TIMEOUT << 2)); |
508 | ||
441b62c1 | 509 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
510 | |
511 | if (tport == NULL) | |
512 | return -ENODEV; | |
513 | ||
514 | dev = port->serial->dev; | |
515 | tdev = tport->tp_tdev; | |
516 | ||
517 | /* only one open on any port on a device at a time */ | |
9da0068a | 518 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
1da177e4 LT |
519 | return -ERESTARTSYS; |
520 | ||
1da177e4 LT |
521 | port_number = port->number - port->serial->minor; |
522 | ||
523 | memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); | |
524 | ||
525 | tport->tp_msr = 0; | |
526 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); | |
527 | ||
528 | /* start interrupt urb the first time a port is opened on this device */ | |
529 | if (tdev->td_open_port_count == 0) { | |
441b62c1 | 530 | dbg("%s - start interrupt in urb", __func__); |
1da177e4 LT |
531 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
532 | if (!urb) { | |
a30fa793 AC |
533 | dev_err(&port->dev, "%s - no interrupt urb\n", |
534 | __func__); | |
1da177e4 | 535 | status = -EINVAL; |
9da0068a | 536 | goto release_lock; |
1da177e4 LT |
537 | } |
538 | urb->complete = ti_interrupt_callback; | |
539 | urb->context = tdev; | |
540 | urb->dev = dev; | |
541 | status = usb_submit_urb(urb, GFP_KERNEL); | |
542 | if (status) { | |
a30fa793 AC |
543 | dev_err(&port->dev, |
544 | "%s - submit interrupt urb failed, %d\n", | |
545 | __func__, status); | |
9da0068a | 546 | goto release_lock; |
1da177e4 LT |
547 | } |
548 | } | |
549 | ||
95da310e AC |
550 | if (tty) |
551 | ti_set_termios(tty, port, tty->termios); | |
1da177e4 | 552 | |
441b62c1 | 553 | dbg("%s - sending TI_OPEN_PORT", __func__); |
1da177e4 LT |
554 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
555 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
556 | if (status) { | |
a30fa793 AC |
557 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
558 | __func__, status); | |
1da177e4 LT |
559 | goto unlink_int_urb; |
560 | } | |
561 | ||
441b62c1 | 562 | dbg("%s - sending TI_START_PORT", __func__); |
1da177e4 LT |
563 | status = ti_command_out_sync(tdev, TI_START_PORT, |
564 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
565 | if (status) { | |
a30fa793 AC |
566 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
567 | __func__, status); | |
1da177e4 LT |
568 | goto unlink_int_urb; |
569 | } | |
570 | ||
441b62c1 | 571 | dbg("%s - sending TI_PURGE_PORT", __func__); |
1da177e4 LT |
572 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
573 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); | |
574 | if (status) { | |
a30fa793 AC |
575 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
576 | __func__, status); | |
1da177e4 LT |
577 | goto unlink_int_urb; |
578 | } | |
579 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, | |
580 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); | |
581 | if (status) { | |
a30fa793 AC |
582 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
583 | __func__, status); | |
1da177e4 LT |
584 | goto unlink_int_urb; |
585 | } | |
586 | ||
587 | /* reset the data toggle on the bulk endpoints to work around bug in | |
588 | * host controllers where things get out of sync some times */ | |
589 | usb_clear_halt(dev, port->write_urb->pipe); | |
590 | usb_clear_halt(dev, port->read_urb->pipe); | |
591 | ||
95da310e AC |
592 | if (tty) |
593 | ti_set_termios(tty, port, tty->termios); | |
1da177e4 | 594 | |
441b62c1 | 595 | dbg("%s - sending TI_OPEN_PORT (2)", __func__); |
1da177e4 LT |
596 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
597 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
598 | if (status) { | |
a30fa793 AC |
599 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
600 | __func__, status); | |
1da177e4 LT |
601 | goto unlink_int_urb; |
602 | } | |
603 | ||
441b62c1 | 604 | dbg("%s - sending TI_START_PORT (2)", __func__); |
1da177e4 LT |
605 | status = ti_command_out_sync(tdev, TI_START_PORT, |
606 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
607 | if (status) { | |
a30fa793 AC |
608 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
609 | __func__, status); | |
1da177e4 LT |
610 | goto unlink_int_urb; |
611 | } | |
612 | ||
613 | /* start read urb */ | |
441b62c1 | 614 | dbg("%s - start read urb", __func__); |
1da177e4 LT |
615 | urb = port->read_urb; |
616 | if (!urb) { | |
441b62c1 | 617 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
1da177e4 LT |
618 | status = -EINVAL; |
619 | goto unlink_int_urb; | |
620 | } | |
621 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
622 | urb->complete = ti_bulk_in_callback; | |
623 | urb->context = tport; | |
624 | urb->dev = dev; | |
625 | status = usb_submit_urb(urb, GFP_KERNEL); | |
626 | if (status) { | |
a30fa793 AC |
627 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
628 | __func__, status); | |
1da177e4 LT |
629 | goto unlink_int_urb; |
630 | } | |
631 | ||
632 | tport->tp_is_open = 1; | |
633 | ++tdev->td_open_port_count; | |
634 | ||
9da0068a | 635 | goto release_lock; |
1da177e4 LT |
636 | |
637 | unlink_int_urb: | |
638 | if (tdev->td_open_port_count == 0) | |
639 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
9da0068a MK |
640 | release_lock: |
641 | mutex_unlock(&tdev->td_open_close_lock); | |
441b62c1 | 642 | dbg("%s - exit %d", __func__, status); |
1da177e4 LT |
643 | return status; |
644 | } | |
645 | ||
646 | ||
335f8514 | 647 | static void ti_close(struct usb_serial_port *port) |
1da177e4 LT |
648 | { |
649 | struct ti_device *tdev; | |
650 | struct ti_port *tport; | |
651 | int port_number; | |
652 | int status; | |
9da0068a | 653 | int do_unlock; |
1da177e4 | 654 | |
441b62c1 | 655 | dbg("%s - port %d", __func__, port->number); |
a30fa793 | 656 | |
1da177e4 LT |
657 | tdev = usb_get_serial_data(port->serial); |
658 | tport = usb_get_serial_port_data(port); | |
659 | if (tdev == NULL || tport == NULL) | |
660 | return; | |
661 | ||
662 | tport->tp_is_open = 0; | |
663 | ||
664 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1); | |
665 | ||
666 | usb_kill_urb(port->read_urb); | |
667 | usb_kill_urb(port->write_urb); | |
668 | tport->tp_write_urb_in_use = 0; | |
669 | ||
670 | port_number = port->number - port->serial->minor; | |
671 | ||
441b62c1 | 672 | dbg("%s - sending TI_CLOSE_PORT", __func__); |
1da177e4 LT |
673 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
674 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
675 | if (status) | |
a30fa793 AC |
676 | dev_err(&port->dev, |
677 | "%s - cannot send close port command, %d\n" | |
678 | , __func__, status); | |
1da177e4 | 679 | |
9da0068a MK |
680 | /* if mutex_lock is interrupted, continue anyway */ |
681 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); | |
1da177e4 LT |
682 | --tport->tp_tdev->td_open_port_count; |
683 | if (tport->tp_tdev->td_open_port_count <= 0) { | |
684 | /* last port is closed, shut down interrupt urb */ | |
685 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
686 | tport->tp_tdev->td_open_port_count = 0; | |
687 | } | |
9da0068a MK |
688 | if (do_unlock) |
689 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 | 690 | |
441b62c1 | 691 | dbg("%s - exit", __func__); |
1da177e4 LT |
692 | } |
693 | ||
694 | ||
95da310e AC |
695 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
696 | const unsigned char *data, int count) | |
1da177e4 LT |
697 | { |
698 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 699 | |
441b62c1 | 700 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
701 | |
702 | if (count == 0) { | |
441b62c1 | 703 | dbg("%s - write request of 0 bytes", __func__); |
1da177e4 LT |
704 | return 0; |
705 | } | |
706 | ||
707 | if (tport == NULL || !tport->tp_is_open) | |
708 | return -ENODEV; | |
709 | ||
074ef65a JH |
710 | count = kfifo_in_locked(&tport->write_fifo, data, count, |
711 | &tport->tp_lock); | |
1da177e4 LT |
712 | ti_send(tport); |
713 | ||
714 | return count; | |
715 | } | |
716 | ||
717 | ||
95da310e | 718 | static int ti_write_room(struct tty_struct *tty) |
1da177e4 | 719 | { |
95da310e | 720 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
721 | struct ti_port *tport = usb_get_serial_port_data(port); |
722 | int room = 0; | |
723 | unsigned long flags; | |
724 | ||
441b62c1 | 725 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
726 | |
727 | if (tport == NULL) | |
23198fda | 728 | return 0; |
a30fa793 | 729 | |
1da177e4 | 730 | spin_lock_irqsave(&tport->tp_lock, flags); |
074ef65a | 731 | room = kfifo_avail(&tport->write_fifo); |
1da177e4 LT |
732 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
733 | ||
441b62c1 | 734 | dbg("%s - returns %d", __func__, room); |
1da177e4 LT |
735 | return room; |
736 | } | |
737 | ||
738 | ||
95da310e | 739 | static int ti_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 740 | { |
95da310e | 741 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
742 | struct ti_port *tport = usb_get_serial_port_data(port); |
743 | int chars = 0; | |
744 | unsigned long flags; | |
745 | ||
441b62c1 | 746 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
747 | |
748 | if (tport == NULL) | |
23198fda | 749 | return 0; |
1da177e4 LT |
750 | |
751 | spin_lock_irqsave(&tport->tp_lock, flags); | |
074ef65a | 752 | chars = kfifo_len(&tport->write_fifo); |
1da177e4 LT |
753 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
754 | ||
441b62c1 | 755 | dbg("%s - returns %d", __func__, chars); |
1da177e4 LT |
756 | return chars; |
757 | } | |
758 | ||
759 | ||
95da310e | 760 | static void ti_throttle(struct tty_struct *tty) |
1da177e4 | 761 | { |
95da310e | 762 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 763 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 764 | |
441b62c1 | 765 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
766 | |
767 | if (tport == NULL) | |
768 | return; | |
769 | ||
1da177e4 LT |
770 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
771 | ti_stop_read(tport, tty); | |
772 | ||
773 | } | |
774 | ||
775 | ||
95da310e | 776 | static void ti_unthrottle(struct tty_struct *tty) |
1da177e4 | 777 | { |
95da310e | 778 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 779 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 LT |
780 | int status; |
781 | ||
441b62c1 | 782 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
783 | |
784 | if (tport == NULL) | |
785 | return; | |
786 | ||
1da177e4 LT |
787 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
788 | status = ti_restart_read(tport, tty); | |
789 | if (status) | |
a30fa793 AC |
790 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
791 | __func__, status); | |
1da177e4 LT |
792 | } |
793 | } | |
794 | ||
0bca1b91 AC |
795 | static int ti_get_icount(struct tty_struct *tty, |
796 | struct serial_icounter_struct *icount) | |
797 | { | |
798 | struct usb_serial_port *port = tty->driver_data; | |
799 | struct ti_port *tport = usb_get_serial_port_data(port); | |
800 | struct async_icount cnow = tport->tp_icount; | |
801 | ||
802 | dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", | |
803 | __func__, port->number, | |
804 | cnow.rx, cnow.tx); | |
805 | ||
806 | icount->cts = cnow.cts; | |
807 | icount->dsr = cnow.dsr; | |
808 | icount->rng = cnow.rng; | |
809 | icount->dcd = cnow.dcd; | |
810 | icount->rx = cnow.rx; | |
811 | icount->tx = cnow.tx; | |
812 | icount->frame = cnow.frame; | |
813 | icount->overrun = cnow.overrun; | |
814 | icount->parity = cnow.parity; | |
815 | icount->brk = cnow.brk; | |
816 | icount->buf_overrun = cnow.buf_overrun; | |
817 | ||
818 | return 0; | |
819 | } | |
1da177e4 | 820 | |
95da310e | 821 | static int ti_ioctl(struct tty_struct *tty, struct file *file, |
1da177e4 LT |
822 | unsigned int cmd, unsigned long arg) |
823 | { | |
95da310e | 824 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
825 | struct ti_port *tport = usb_get_serial_port_data(port); |
826 | struct async_icount cnow; | |
827 | struct async_icount cprev; | |
828 | ||
441b62c1 | 829 | dbg("%s - port %d, cmd = 0x%04X", __func__, port->number, cmd); |
1da177e4 LT |
830 | |
831 | if (tport == NULL) | |
832 | return -ENODEV; | |
833 | ||
834 | switch (cmd) { | |
a30fa793 AC |
835 | case TIOCGSERIAL: |
836 | dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); | |
837 | return ti_get_serial_info(tport, | |
838 | (struct serial_struct __user *)arg); | |
839 | case TIOCSSERIAL: | |
840 | dbg("%s - (%d) TIOCSSERIAL", __func__, port->number); | |
4a90f09b AC |
841 | return ti_set_serial_info(tty, tport, |
842 | (struct serial_struct __user *)arg); | |
a30fa793 AC |
843 | case TIOCMIWAIT: |
844 | dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); | |
845 | cprev = tport->tp_icount; | |
846 | while (1) { | |
847 | interruptible_sleep_on(&tport->tp_msr_wait); | |
848 | if (signal_pending(current)) | |
849 | return -ERESTARTSYS; | |
850 | cnow = tport->tp_icount; | |
851 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && | |
852 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) | |
853 | return -EIO; /* no change => error */ | |
854 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
855 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
856 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
857 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) | |
858 | return 0; | |
859 | cprev = cnow; | |
860 | } | |
861 | break; | |
1da177e4 | 862 | } |
1da177e4 LT |
863 | return -ENOIOCTLCMD; |
864 | } | |
865 | ||
866 | ||
95da310e AC |
867 | static void ti_set_termios(struct tty_struct *tty, |
868 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
869 | { |
870 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 871 | struct ti_uart_config *config; |
a30fa793 | 872 | tcflag_t cflag, iflag; |
1da177e4 LT |
873 | int baud; |
874 | int status; | |
875 | int port_number = port->number - port->serial->minor; | |
876 | unsigned int mcr; | |
877 | ||
441b62c1 | 878 | dbg("%s - port %d", __func__, port->number); |
1da177e4 | 879 | |
1da177e4 LT |
880 | cflag = tty->termios->c_cflag; |
881 | iflag = tty->termios->c_iflag; | |
882 | ||
441b62c1 | 883 | dbg("%s - cflag %08x, iflag %08x", __func__, cflag, iflag); |
a30fa793 AC |
884 | dbg("%s - old clfag %08x, old iflag %08x", __func__, |
885 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
886 | |
887 | if (tport == NULL) | |
888 | return; | |
889 | ||
890 | config = kmalloc(sizeof(*config), GFP_KERNEL); | |
891 | if (!config) { | |
441b62c1 | 892 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
893 | return; |
894 | } | |
895 | ||
896 | config->wFlags = 0; | |
897 | ||
898 | /* these flags must be set */ | |
899 | config->wFlags |= TI_UART_ENABLE_MS_INTS; | |
900 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; | |
901 | config->bUartMode = (__u8)(tport->tp_uart_mode); | |
902 | ||
903 | switch (cflag & CSIZE) { | |
a30fa793 AC |
904 | case CS5: |
905 | config->bDataBits = TI_UART_5_DATA_BITS; | |
906 | break; | |
907 | case CS6: | |
908 | config->bDataBits = TI_UART_6_DATA_BITS; | |
909 | break; | |
910 | case CS7: | |
911 | config->bDataBits = TI_UART_7_DATA_BITS; | |
912 | break; | |
913 | default: | |
914 | case CS8: | |
915 | config->bDataBits = TI_UART_8_DATA_BITS; | |
916 | break; | |
1da177e4 LT |
917 | } |
918 | ||
537699ef AC |
919 | /* CMSPAR isn't supported by this driver */ |
920 | tty->termios->c_cflag &= ~CMSPAR; | |
921 | ||
1da177e4 LT |
922 | if (cflag & PARENB) { |
923 | if (cflag & PARODD) { | |
924 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
925 | config->bParity = TI_UART_ODD_PARITY; | |
926 | } else { | |
927 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
928 | config->bParity = TI_UART_EVEN_PARITY; | |
929 | } | |
930 | } else { | |
931 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; | |
a30fa793 | 932 | config->bParity = TI_UART_NO_PARITY; |
1da177e4 LT |
933 | } |
934 | ||
935 | if (cflag & CSTOPB) | |
936 | config->bStopBits = TI_UART_2_STOP_BITS; | |
937 | else | |
938 | config->bStopBits = TI_UART_1_STOP_BITS; | |
939 | ||
940 | if (cflag & CRTSCTS) { | |
941 | /* RTS flow control must be off to drop RTS for baud rate B0 */ | |
942 | if ((cflag & CBAUD) != B0) | |
943 | config->wFlags |= TI_UART_ENABLE_RTS_IN; | |
944 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; | |
945 | } else { | |
946 | tty->hw_stopped = 0; | |
947 | ti_restart_read(tport, tty); | |
948 | } | |
949 | ||
950 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
951 | config->cXon = START_CHAR(tty); | |
952 | config->cXoff = STOP_CHAR(tty); | |
953 | ||
954 | if (I_IXOFF(tty)) | |
955 | config->wFlags |= TI_UART_ENABLE_X_IN; | |
956 | else | |
957 | ti_restart_read(tport, tty); | |
958 | ||
959 | if (I_IXON(tty)) | |
960 | config->wFlags |= TI_UART_ENABLE_X_OUT; | |
961 | } | |
962 | ||
963 | baud = tty_get_baud_rate(tty); | |
537699ef AC |
964 | if (!baud) |
965 | baud = 9600; | |
1da177e4 LT |
966 | if (tport->tp_tdev->td_is_3410) |
967 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); | |
968 | else | |
969 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); | |
970 | ||
537699ef AC |
971 | /* FIXME: Should calculate resulting baud here and report it back */ |
972 | if ((cflag & CBAUD) != B0) | |
973 | tty_encode_baud_rate(tty, baud, baud); | |
974 | ||
1da177e4 | 975 | dbg("%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d", |
441b62c1 | 976 | __func__, baud, config->wBaudRate, config->wFlags, config->bDataBits, config->bParity, config->bStopBits, config->cXon, config->cXoff, config->bUartMode); |
1da177e4 LT |
977 | |
978 | cpu_to_be16s(&config->wBaudRate); | |
979 | cpu_to_be16s(&config->wFlags); | |
980 | ||
981 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, | |
982 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, | |
983 | sizeof(*config)); | |
984 | if (status) | |
a30fa793 AC |
985 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
986 | __func__, port_number, status); | |
1da177e4 LT |
987 | |
988 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ | |
989 | mcr = tport->tp_shadow_mcr; | |
990 | /* if baud rate is B0, clear RTS and DTR */ | |
991 | if ((cflag & CBAUD) == B0) | |
992 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); | |
993 | status = ti_set_mcr(tport, mcr); | |
994 | if (status) | |
a30fa793 AC |
995 | dev_err(&port->dev, |
996 | "%s - cannot set modem control on port %d, %d\n", | |
997 | __func__, port_number, status); | |
1da177e4 LT |
998 | |
999 | kfree(config); | |
1000 | } | |
1001 | ||
1002 | ||
95da310e | 1003 | static int ti_tiocmget(struct tty_struct *tty, struct file *file) |
1da177e4 | 1004 | { |
95da310e | 1005 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1006 | struct ti_port *tport = usb_get_serial_port_data(port); |
1007 | unsigned int result; | |
1008 | unsigned int msr; | |
1009 | unsigned int mcr; | |
04ca89d4 | 1010 | unsigned long flags; |
1da177e4 | 1011 | |
441b62c1 | 1012 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
1013 | |
1014 | if (tport == NULL) | |
1015 | return -ENODEV; | |
1016 | ||
04ca89d4 | 1017 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1018 | msr = tport->tp_msr; |
1019 | mcr = tport->tp_shadow_mcr; | |
04ca89d4 | 1020 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1021 | |
1022 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) | |
1023 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) | |
1024 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) | |
1025 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) | |
1026 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) | |
1027 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) | |
1028 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); | |
1029 | ||
441b62c1 | 1030 | dbg("%s - 0x%04X", __func__, result); |
1da177e4 LT |
1031 | |
1032 | return result; | |
1033 | } | |
1034 | ||
1035 | ||
95da310e | 1036 | static int ti_tiocmset(struct tty_struct *tty, struct file *file, |
1da177e4 LT |
1037 | unsigned int set, unsigned int clear) |
1038 | { | |
95da310e | 1039 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1040 | struct ti_port *tport = usb_get_serial_port_data(port); |
1041 | unsigned int mcr; | |
04ca89d4 | 1042 | unsigned long flags; |
1da177e4 | 1043 | |
441b62c1 | 1044 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
1045 | |
1046 | if (tport == NULL) | |
1047 | return -ENODEV; | |
1048 | ||
04ca89d4 | 1049 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1050 | mcr = tport->tp_shadow_mcr; |
1051 | ||
1052 | if (set & TIOCM_RTS) | |
1053 | mcr |= TI_MCR_RTS; | |
1054 | if (set & TIOCM_DTR) | |
1055 | mcr |= TI_MCR_DTR; | |
1056 | if (set & TIOCM_LOOP) | |
1057 | mcr |= TI_MCR_LOOP; | |
1058 | ||
1059 | if (clear & TIOCM_RTS) | |
1060 | mcr &= ~TI_MCR_RTS; | |
1061 | if (clear & TIOCM_DTR) | |
1062 | mcr &= ~TI_MCR_DTR; | |
1063 | if (clear & TIOCM_LOOP) | |
1064 | mcr &= ~TI_MCR_LOOP; | |
04ca89d4 | 1065 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1066 | |
1067 | return ti_set_mcr(tport, mcr); | |
1068 | } | |
1069 | ||
1070 | ||
95da310e | 1071 | static void ti_break(struct tty_struct *tty, int break_state) |
1da177e4 | 1072 | { |
95da310e | 1073 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1074 | struct ti_port *tport = usb_get_serial_port_data(port); |
1075 | int status; | |
1076 | ||
441b62c1 | 1077 | dbg("%s - state = %d", __func__, break_state); |
1da177e4 LT |
1078 | |
1079 | if (tport == NULL) | |
1080 | return; | |
1081 | ||
1082 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0); | |
1083 | ||
1084 | status = ti_write_byte(tport->tp_tdev, | |
1085 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, | |
1086 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); | |
1087 | ||
1088 | if (status) | |
441b62c1 | 1089 | dbg("%s - error setting break, %d", __func__, status); |
1da177e4 LT |
1090 | } |
1091 | ||
1092 | ||
7d12e780 | 1093 | static void ti_interrupt_callback(struct urb *urb) |
1da177e4 | 1094 | { |
cdc97792 | 1095 | struct ti_device *tdev = urb->context; |
1da177e4 LT |
1096 | struct usb_serial_port *port; |
1097 | struct usb_serial *serial = tdev->td_serial; | |
1098 | struct ti_port *tport; | |
1099 | struct device *dev = &urb->dev->dev; | |
1100 | unsigned char *data = urb->transfer_buffer; | |
1101 | int length = urb->actual_length; | |
1102 | int port_number; | |
1103 | int function; | |
52171b48 GKH |
1104 | int status = urb->status; |
1105 | int retval; | |
1da177e4 LT |
1106 | __u8 msr; |
1107 | ||
441b62c1 | 1108 | dbg("%s", __func__); |
1da177e4 | 1109 | |
52171b48 | 1110 | switch (status) { |
1da177e4 LT |
1111 | case 0: |
1112 | break; | |
1113 | case -ECONNRESET: | |
1114 | case -ENOENT: | |
1115 | case -ESHUTDOWN: | |
441b62c1 | 1116 | dbg("%s - urb shutting down, %d", __func__, status); |
1da177e4 LT |
1117 | tdev->td_urb_error = 1; |
1118 | return; | |
1119 | default: | |
52171b48 | 1120 | dev_err(dev, "%s - nonzero urb status, %d\n", |
441b62c1 | 1121 | __func__, status); |
1da177e4 LT |
1122 | tdev->td_urb_error = 1; |
1123 | goto exit; | |
1124 | } | |
1125 | ||
1126 | if (length != 2) { | |
441b62c1 | 1127 | dbg("%s - bad packet size, %d", __func__, length); |
1da177e4 LT |
1128 | goto exit; |
1129 | } | |
1130 | ||
1131 | if (data[0] == TI_CODE_HARDWARE_ERROR) { | |
441b62c1 | 1132 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
1da177e4 LT |
1133 | goto exit; |
1134 | } | |
1135 | ||
1136 | port_number = TI_GET_PORT_FROM_CODE(data[0]); | |
1137 | function = TI_GET_FUNC_FROM_CODE(data[0]); | |
1138 | ||
a30fa793 AC |
1139 | dbg("%s - port_number %d, function %d, data 0x%02X", |
1140 | __func__, port_number, function, data[1]); | |
1da177e4 LT |
1141 | |
1142 | if (port_number >= serial->num_ports) { | |
a30fa793 AC |
1143 | dev_err(dev, "%s - bad port number, %d\n", |
1144 | __func__, port_number); | |
1da177e4 LT |
1145 | goto exit; |
1146 | } | |
1147 | ||
1148 | port = serial->port[port_number]; | |
1149 | ||
1150 | tport = usb_get_serial_port_data(port); | |
1151 | if (!tport) | |
1152 | goto exit; | |
1153 | ||
1154 | switch (function) { | |
1155 | case TI_CODE_DATA_ERROR: | |
a30fa793 AC |
1156 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
1157 | __func__, port_number, data[1]); | |
1da177e4 LT |
1158 | break; |
1159 | ||
1160 | case TI_CODE_MODEM_STATUS: | |
1161 | msr = data[1]; | |
441b62c1 | 1162 | dbg("%s - port %d, msr 0x%02X", __func__, port_number, msr); |
1da177e4 LT |
1163 | ti_handle_new_msr(tport, msr); |
1164 | break; | |
1165 | ||
1166 | default: | |
a30fa793 AC |
1167 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
1168 | __func__, data[1]); | |
1da177e4 LT |
1169 | break; |
1170 | } | |
1171 | ||
1172 | exit: | |
52171b48 GKH |
1173 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1174 | if (retval) | |
1175 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", | |
441b62c1 | 1176 | __func__, retval); |
1da177e4 LT |
1177 | } |
1178 | ||
1179 | ||
7d12e780 | 1180 | static void ti_bulk_in_callback(struct urb *urb) |
1da177e4 | 1181 | { |
cdc97792 | 1182 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1183 | struct usb_serial_port *port = tport->tp_port; |
1184 | struct device *dev = &urb->dev->dev; | |
52171b48 GKH |
1185 | int status = urb->status; |
1186 | int retval = 0; | |
4a90f09b | 1187 | struct tty_struct *tty; |
1da177e4 | 1188 | |
441b62c1 | 1189 | dbg("%s", __func__); |
1da177e4 | 1190 | |
52171b48 | 1191 | switch (status) { |
1da177e4 LT |
1192 | case 0: |
1193 | break; | |
1194 | case -ECONNRESET: | |
1195 | case -ENOENT: | |
1196 | case -ESHUTDOWN: | |
441b62c1 | 1197 | dbg("%s - urb shutting down, %d", __func__, status); |
1da177e4 LT |
1198 | tport->tp_tdev->td_urb_error = 1; |
1199 | wake_up_interruptible(&tport->tp_write_wait); | |
1200 | return; | |
1201 | default: | |
52171b48 | 1202 | dev_err(dev, "%s - nonzero urb status, %d\n", |
a30fa793 | 1203 | __func__, status); |
1da177e4 LT |
1204 | tport->tp_tdev->td_urb_error = 1; |
1205 | wake_up_interruptible(&tport->tp_write_wait); | |
1206 | } | |
1207 | ||
52171b48 | 1208 | if (status == -EPIPE) |
1da177e4 LT |
1209 | goto exit; |
1210 | ||
52171b48 | 1211 | if (status) { |
441b62c1 | 1212 | dev_err(dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1213 | return; |
1214 | } | |
1215 | ||
4a90f09b | 1216 | tty = tty_port_tty_get(&port->port); |
cf545093 AC |
1217 | if (tty) { |
1218 | if (urb->actual_length) { | |
1219 | usb_serial_debug_data(debug, dev, __func__, | |
1220 | urb->actual_length, urb->transfer_buffer); | |
1221 | ||
1222 | if (!tport->tp_is_open) | |
1223 | dbg("%s - port closed, dropping data", | |
1224 | __func__); | |
1225 | else | |
1226 | ti_recv(&urb->dev->dev, tty, | |
a30fa793 AC |
1227 | urb->transfer_buffer, |
1228 | urb->actual_length); | |
cf545093 AC |
1229 | spin_lock(&tport->tp_lock); |
1230 | tport->tp_icount.rx += urb->actual_length; | |
1231 | spin_unlock(&tport->tp_lock); | |
1232 | } | |
4a90f09b | 1233 | tty_kref_put(tty); |
1da177e4 LT |
1234 | } |
1235 | ||
1236 | exit: | |
1237 | /* continue to read unless stopping */ | |
1238 | spin_lock(&tport->tp_lock); | |
1239 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) { | |
1240 | urb->dev = port->serial->dev; | |
52171b48 | 1241 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1242 | } else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) { |
1243 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; | |
1244 | } | |
1245 | spin_unlock(&tport->tp_lock); | |
52171b48 GKH |
1246 | if (retval) |
1247 | dev_err(dev, "%s - resubmit read urb failed, %d\n", | |
441b62c1 | 1248 | __func__, retval); |
1da177e4 LT |
1249 | } |
1250 | ||
1251 | ||
7d12e780 | 1252 | static void ti_bulk_out_callback(struct urb *urb) |
1da177e4 | 1253 | { |
cdc97792 | 1254 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1255 | struct usb_serial_port *port = tport->tp_port; |
1256 | struct device *dev = &urb->dev->dev; | |
52171b48 | 1257 | int status = urb->status; |
1da177e4 | 1258 | |
441b62c1 | 1259 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
1260 | |
1261 | tport->tp_write_urb_in_use = 0; | |
1262 | ||
52171b48 | 1263 | switch (status) { |
1da177e4 LT |
1264 | case 0: |
1265 | break; | |
1266 | case -ECONNRESET: | |
1267 | case -ENOENT: | |
1268 | case -ESHUTDOWN: | |
441b62c1 | 1269 | dbg("%s - urb shutting down, %d", __func__, status); |
1da177e4 LT |
1270 | tport->tp_tdev->td_urb_error = 1; |
1271 | wake_up_interruptible(&tport->tp_write_wait); | |
1272 | return; | |
1273 | default: | |
52171b48 | 1274 | dev_err(dev, "%s - nonzero urb status, %d\n", |
441b62c1 | 1275 | __func__, status); |
1da177e4 LT |
1276 | tport->tp_tdev->td_urb_error = 1; |
1277 | wake_up_interruptible(&tport->tp_write_wait); | |
1278 | } | |
1279 | ||
1280 | /* send any buffered data */ | |
1281 | ti_send(tport); | |
1282 | } | |
1283 | ||
1284 | ||
1285 | static void ti_recv(struct device *dev, struct tty_struct *tty, | |
1286 | unsigned char *data, int length) | |
1287 | { | |
1288 | int cnt; | |
1289 | ||
1290 | do { | |
a108bfcb | 1291 | cnt = tty_insert_flip_string(tty, data, length); |
33f0f88f | 1292 | if (cnt < length) { |
a30fa793 AC |
1293 | dev_err(dev, "%s - dropping data, %d bytes lost\n", |
1294 | __func__, length - cnt); | |
1295 | if (cnt == 0) | |
33f0f88f | 1296 | break; |
1da177e4 | 1297 | } |
33f0f88f | 1298 | tty_flip_buffer_push(tty); |
1da177e4 LT |
1299 | data += cnt; |
1300 | length -= cnt; | |
1301 | } while (length > 0); | |
1302 | ||
1da177e4 LT |
1303 | } |
1304 | ||
1305 | ||
1306 | static void ti_send(struct ti_port *tport) | |
1307 | { | |
1308 | int count, result; | |
1309 | struct usb_serial_port *port = tport->tp_port; | |
4a90f09b | 1310 | struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */ |
1da177e4 LT |
1311 | unsigned long flags; |
1312 | ||
1313 | ||
441b62c1 | 1314 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
1315 | |
1316 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1317 | ||
4a90f09b AC |
1318 | if (tport->tp_write_urb_in_use) |
1319 | goto unlock; | |
1da177e4 | 1320 | |
074ef65a | 1321 | count = kfifo_out(&tport->write_fifo, |
1da177e4 LT |
1322 | port->write_urb->transfer_buffer, |
1323 | port->bulk_out_size); | |
1324 | ||
4a90f09b AC |
1325 | if (count == 0) |
1326 | goto unlock; | |
1da177e4 LT |
1327 | |
1328 | tport->tp_write_urb_in_use = 1; | |
1329 | ||
1330 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1331 | ||
a30fa793 AC |
1332 | usb_serial_debug_data(debug, &port->dev, __func__, count, |
1333 | port->write_urb->transfer_buffer); | |
1da177e4 LT |
1334 | |
1335 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, | |
1336 | usb_sndbulkpipe(port->serial->dev, | |
1337 | port->bulk_out_endpointAddress), | |
1338 | port->write_urb->transfer_buffer, count, | |
1339 | ti_bulk_out_callback, tport); | |
1340 | ||
1341 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1342 | if (result) { | |
a30fa793 AC |
1343 | dev_err(&port->dev, "%s - submit write urb failed, %d\n", |
1344 | __func__, result); | |
1345 | tport->tp_write_urb_in_use = 0; | |
1da177e4 LT |
1346 | /* TODO: reschedule ti_send */ |
1347 | } else { | |
1348 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1349 | tport->tp_icount.tx += count; | |
1350 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1351 | } | |
1352 | ||
1353 | /* more room in the buffer for new writes, wakeup */ | |
1354 | if (tty) | |
1355 | tty_wakeup(tty); | |
4a90f09b | 1356 | tty_kref_put(tty); |
1da177e4 | 1357 | wake_up_interruptible(&tport->tp_write_wait); |
4a90f09b AC |
1358 | return; |
1359 | unlock: | |
1360 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1361 | tty_kref_put(tty); | |
1362 | return; | |
1da177e4 LT |
1363 | } |
1364 | ||
1365 | ||
1366 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) | |
1367 | { | |
04ca89d4 | 1368 | unsigned long flags; |
1da177e4 LT |
1369 | int status; |
1370 | ||
1371 | status = ti_write_byte(tport->tp_tdev, | |
1372 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, | |
1373 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); | |
1374 | ||
04ca89d4 | 1375 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1376 | if (!status) |
1377 | tport->tp_shadow_mcr = mcr; | |
04ca89d4 | 1378 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1379 | |
1380 | return status; | |
1381 | } | |
1382 | ||
1383 | ||
1384 | static int ti_get_lsr(struct ti_port *tport) | |
1385 | { | |
a30fa793 | 1386 | int size, status; |
1da177e4 LT |
1387 | struct ti_device *tdev = tport->tp_tdev; |
1388 | struct usb_serial_port *port = tport->tp_port; | |
1389 | int port_number = port->number - port->serial->minor; | |
1390 | struct ti_port_status *data; | |
1391 | ||
441b62c1 | 1392 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
1393 | |
1394 | size = sizeof(struct ti_port_status); | |
1395 | data = kmalloc(size, GFP_KERNEL); | |
1396 | if (!data) { | |
441b62c1 | 1397 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1398 | return -ENOMEM; |
1399 | } | |
1400 | ||
1401 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, | |
1402 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); | |
1403 | if (status) { | |
a30fa793 AC |
1404 | dev_err(&port->dev, |
1405 | "%s - get port status command failed, %d\n", | |
1406 | __func__, status); | |
1da177e4 LT |
1407 | goto free_data; |
1408 | } | |
1409 | ||
441b62c1 | 1410 | dbg("%s - lsr 0x%02X", __func__, data->bLSR); |
1da177e4 LT |
1411 | |
1412 | tport->tp_lsr = data->bLSR; | |
1413 | ||
1414 | free_data: | |
1415 | kfree(data); | |
1416 | return status; | |
1417 | } | |
1418 | ||
1419 | ||
1420 | static int ti_get_serial_info(struct ti_port *tport, | |
1421 | struct serial_struct __user *ret_arg) | |
1422 | { | |
1423 | struct usb_serial_port *port = tport->tp_port; | |
1424 | struct serial_struct ret_serial; | |
1425 | ||
1426 | if (!ret_arg) | |
1427 | return -EFAULT; | |
1428 | ||
1429 | memset(&ret_serial, 0, sizeof(ret_serial)); | |
1430 | ||
1431 | ret_serial.type = PORT_16550A; | |
1432 | ret_serial.line = port->serial->minor; | |
1433 | ret_serial.port = port->number - port->serial->minor; | |
1434 | ret_serial.flags = tport->tp_flags; | |
1435 | ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; | |
1436 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; | |
1437 | ret_serial.closing_wait = tport->tp_closing_wait; | |
1438 | ||
1439 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) | |
1440 | return -EFAULT; | |
1441 | ||
1442 | return 0; | |
1443 | } | |
1444 | ||
1445 | ||
4a90f09b | 1446 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
1447 | struct serial_struct __user *new_arg) |
1448 | { | |
1da177e4 LT |
1449 | struct serial_struct new_serial; |
1450 | ||
1451 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) | |
1452 | return -EFAULT; | |
1453 | ||
1454 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; | |
1da177e4 LT |
1455 | tport->tp_closing_wait = new_serial.closing_wait; |
1456 | ||
1457 | return 0; | |
1458 | } | |
1459 | ||
1460 | ||
1461 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) | |
1462 | { | |
1463 | struct async_icount *icount; | |
1464 | struct tty_struct *tty; | |
1465 | unsigned long flags; | |
1466 | ||
441b62c1 | 1467 | dbg("%s - msr 0x%02X", __func__, msr); |
1da177e4 LT |
1468 | |
1469 | if (msr & TI_MSR_DELTA_MASK) { | |
1470 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1471 | icount = &tport->tp_icount; | |
1472 | if (msr & TI_MSR_DELTA_CTS) | |
1473 | icount->cts++; | |
1474 | if (msr & TI_MSR_DELTA_DSR) | |
1475 | icount->dsr++; | |
1476 | if (msr & TI_MSR_DELTA_CD) | |
1477 | icount->dcd++; | |
1478 | if (msr & TI_MSR_DELTA_RI) | |
1479 | icount->rng++; | |
1480 | wake_up_interruptible(&tport->tp_msr_wait); | |
1481 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1482 | } | |
1483 | ||
1484 | tport->tp_msr = msr & TI_MSR_MASK; | |
1485 | ||
1486 | /* handle CTS flow control */ | |
4a90f09b | 1487 | tty = tty_port_tty_get(&tport->tp_port->port); |
1da177e4 LT |
1488 | if (tty && C_CRTSCTS(tty)) { |
1489 | if (msr & TI_MSR_CTS) { | |
1490 | tty->hw_stopped = 0; | |
1491 | tty_wakeup(tty); | |
1492 | } else { | |
1493 | tty->hw_stopped = 1; | |
1494 | } | |
1495 | } | |
4a90f09b | 1496 | tty_kref_put(tty); |
1da177e4 LT |
1497 | } |
1498 | ||
1499 | ||
1500 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) | |
1501 | { | |
1502 | struct ti_device *tdev = tport->tp_tdev; | |
1503 | struct usb_serial_port *port = tport->tp_port; | |
1504 | wait_queue_t wait; | |
1da177e4 | 1505 | |
441b62c1 | 1506 | dbg("%s - port %d", __func__, port->number); |
1da177e4 | 1507 | |
0915f490 | 1508 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1509 | |
1510 | /* wait for data to drain from the buffer */ | |
1511 | tdev->td_urb_error = 0; | |
1512 | init_waitqueue_entry(&wait, current); | |
1513 | add_wait_queue(&tport->tp_write_wait, &wait); | |
1514 | for (;;) { | |
1515 | set_current_state(TASK_INTERRUPTIBLE); | |
074ef65a | 1516 | if (kfifo_len(&tport->write_fifo) == 0 |
1da177e4 LT |
1517 | || timeout == 0 || signal_pending(current) |
1518 | || tdev->td_urb_error | |
0915f490 | 1519 | || port->serial->disconnected) /* disconnect */ |
1da177e4 | 1520 | break; |
0915f490 | 1521 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1522 | timeout = schedule_timeout(timeout); |
0915f490 | 1523 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1524 | } |
1525 | set_current_state(TASK_RUNNING); | |
1526 | remove_wait_queue(&tport->tp_write_wait, &wait); | |
1527 | ||
1528 | /* flush any remaining data in the buffer */ | |
1529 | if (flush) | |
074ef65a | 1530 | kfifo_reset_out(&tport->write_fifo); |
1da177e4 | 1531 | |
0915f490 | 1532 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1533 | |
0915f490 | 1534 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 LT |
1535 | /* wait for data to drain from the device */ |
1536 | /* wait for empty tx register, plus 20 ms */ | |
1537 | timeout += jiffies; | |
1538 | tport->tp_lsr &= ~TI_LSR_TX_EMPTY; | |
1539 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) | |
1540 | && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error | |
0915f490 | 1541 | && !port->serial->disconnected) { |
1da177e4 LT |
1542 | if (ti_get_lsr(tport)) |
1543 | break; | |
0915f490 | 1544 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 | 1545 | msleep_interruptible(20); |
0915f490 | 1546 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 | 1547 | } |
0915f490 | 1548 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 LT |
1549 | } |
1550 | ||
1551 | ||
1552 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) | |
1553 | { | |
1554 | unsigned long flags; | |
1555 | ||
1556 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1557 | ||
1558 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) | |
1559 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; | |
1560 | ||
1561 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1562 | } | |
1563 | ||
1564 | ||
1565 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) | |
1566 | { | |
1567 | struct urb *urb; | |
1568 | int status = 0; | |
1569 | unsigned long flags; | |
1570 | ||
1571 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1572 | ||
1573 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { | |
944dc184 | 1574 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
1da177e4 | 1575 | urb = tport->tp_port->read_urb; |
944dc184 | 1576 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1577 | urb->complete = ti_bulk_in_callback; |
1578 | urb->context = tport; | |
1579 | urb->dev = tport->tp_port->serial->dev; | |
1580 | status = usb_submit_urb(urb, GFP_KERNEL); | |
944dc184 ON |
1581 | } else { |
1582 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1583 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1da177e4 | 1584 | } |
1da177e4 LT |
1585 | |
1586 | return status; | |
1587 | } | |
1588 | ||
1589 | ||
1590 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
1591 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1592 | { | |
1593 | int status; | |
1594 | ||
1595 | status = usb_control_msg(tdev->td_serial->dev, | |
1596 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, | |
1597 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
1598 | value, moduleid, data, size, 1000); | |
1599 | ||
1600 | if (status == size) | |
1601 | status = 0; | |
1602 | ||
1603 | if (status > 0) | |
1604 | status = -ECOMM; | |
1605 | ||
1606 | return status; | |
1607 | } | |
1608 | ||
1609 | ||
1610 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
1611 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1612 | { | |
1613 | int status; | |
1614 | ||
1615 | status = usb_control_msg(tdev->td_serial->dev, | |
1616 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, | |
1617 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
1618 | value, moduleid, data, size, 1000); | |
1619 | ||
1620 | if (status == size) | |
1621 | status = 0; | |
1622 | ||
1623 | if (status > 0) | |
1624 | status = -ECOMM; | |
1625 | ||
1626 | return status; | |
1627 | } | |
1628 | ||
1629 | ||
1630 | static int ti_write_byte(struct ti_device *tdev, unsigned long addr, | |
1631 | __u8 mask, __u8 byte) | |
1632 | { | |
1633 | int status; | |
1634 | unsigned int size; | |
1635 | struct ti_write_data_bytes *data; | |
1636 | struct device *dev = &tdev->td_serial->dev->dev; | |
1637 | ||
a30fa793 AC |
1638 | dbg("%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X", |
1639 | __func__, addr, mask, byte); | |
1da177e4 LT |
1640 | |
1641 | size = sizeof(struct ti_write_data_bytes) + 2; | |
1642 | data = kmalloc(size, GFP_KERNEL); | |
1643 | if (!data) { | |
441b62c1 | 1644 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1645 | return -ENOMEM; |
1646 | } | |
1647 | ||
1648 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; | |
1649 | data->bDataType = TI_RW_DATA_BYTE; | |
1650 | data->bDataCounter = 1; | |
1651 | data->wBaseAddrHi = cpu_to_be16(addr>>16); | |
1652 | data->wBaseAddrLo = cpu_to_be16(addr); | |
1653 | data->bData[0] = mask; | |
1654 | data->bData[1] = byte; | |
1655 | ||
1656 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, | |
1657 | (__u8 *)data, size); | |
1658 | ||
1659 | if (status < 0) | |
441b62c1 | 1660 | dev_err(dev, "%s - failed, %d\n", __func__, status); |
1da177e4 LT |
1661 | |
1662 | kfree(data); | |
1663 | ||
1664 | return status; | |
1665 | } | |
1666 | ||
95da310e AC |
1667 | static int ti_do_download(struct usb_device *dev, int pipe, |
1668 | u8 *buffer, int size) | |
1da177e4 | 1669 | { |
1da177e4 | 1670 | int pos; |
95da310e | 1671 | u8 cs = 0; |
1da177e4 | 1672 | int done; |
1da177e4 | 1673 | struct ti_firmware_header *header; |
87ea8c88 | 1674 | int status = 0; |
95da310e | 1675 | int len; |
a30fa793 AC |
1676 | |
1677 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) | |
1da177e4 LT |
1678 | cs = (__u8)(cs + buffer[pos]); |
1679 | ||
1680 | header = (struct ti_firmware_header *)buffer; | |
a30fa793 | 1681 | header->wLength = cpu_to_le16((__u16)(size |
95da310e | 1682 | - sizeof(struct ti_firmware_header))); |
1da177e4 LT |
1683 | header->bCheckSum = cs; |
1684 | ||
441b62c1 | 1685 | dbg("%s - downloading firmware", __func__); |
95da310e AC |
1686 | for (pos = 0; pos < size; pos += done) { |
1687 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); | |
1688 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, | |
1689 | &done, 1000); | |
1da177e4 LT |
1690 | if (status) |
1691 | break; | |
1692 | } | |
95da310e AC |
1693 | return status; |
1694 | } | |
1da177e4 | 1695 | |
05a3d905 | 1696 | static int ti_download_firmware(struct ti_device *tdev) |
95da310e | 1697 | { |
05a3d905 | 1698 | int status; |
95da310e AC |
1699 | int buffer_size; |
1700 | __u8 *buffer; | |
1701 | struct usb_device *dev = tdev->td_serial->dev; | |
1702 | unsigned int pipe = usb_sndbulkpipe(dev, | |
1703 | tdev->td_serial->port[0]->bulk_out_endpointAddress); | |
1704 | const struct firmware *fw_p; | |
1705 | char buf[32]; | |
1da177e4 | 1706 | |
cdc04834 | 1707 | dbg("%s\n", __func__); |
05a3d905 CA |
1708 | /* try ID specific firmware first, then try generic firmware */ |
1709 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor, | |
1710 | dev->descriptor.idProduct); | |
1711 | if ((status = request_firmware(&fw_p, buf, &dev->dev)) != 0) { | |
cb7a7c6a CA |
1712 | buf[0] = '\0'; |
1713 | if (dev->descriptor.idVendor == MTS_VENDOR_ID) { | |
1714 | switch (dev->descriptor.idProduct) { | |
1715 | case MTS_CDMA_PRODUCT_ID: | |
1716 | strcpy(buf, "mts_cdma.fw"); | |
1717 | break; | |
1718 | case MTS_GSM_PRODUCT_ID: | |
1719 | strcpy(buf, "mts_gsm.fw"); | |
1720 | break; | |
1721 | case MTS_EDGE_PRODUCT_ID: | |
1722 | strcpy(buf, "mts_edge.fw"); | |
1723 | break; | |
cdc04834 AM |
1724 | case MTS_MT9234MU_PRODUCT_ID: |
1725 | strcpy(buf, "mts_mt9234mu.fw"); | |
1726 | break; | |
1727 | case MTS_MT9234ZBA_PRODUCT_ID: | |
1728 | strcpy(buf, "mts_mt9234zba.fw"); | |
1729 | break; | |
1730 | case MTS_MT9234ZBAOLD_PRODUCT_ID: | |
1731 | strcpy(buf, "mts_mt9234zba.fw"); | |
1732 | break; } | |
cb7a7c6a CA |
1733 | } |
1734 | if (buf[0] == '\0') { | |
1735 | if (tdev->td_is_3410) | |
1736 | strcpy(buf, "ti_3410.fw"); | |
1737 | else | |
1738 | strcpy(buf, "ti_5052.fw"); | |
1739 | } | |
05a3d905 CA |
1740 | status = request_firmware(&fw_p, buf, &dev->dev); |
1741 | } | |
1742 | if (status) { | |
95da310e AC |
1743 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
1744 | return -ENOENT; | |
1745 | } | |
1746 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { | |
75181f38 | 1747 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
95da310e AC |
1748 | return -ENOENT; |
1749 | } | |
1750 | ||
1751 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); | |
1752 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1753 | if (buffer) { | |
1754 | memcpy(buffer, fw_p->data, fw_p->size); | |
1755 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); | |
2bcbe4c1 | 1756 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
95da310e | 1757 | kfree(buffer); |
05a3d905 | 1758 | } else { |
cdc04834 | 1759 | dbg("%s ENOMEM\n", __func__); |
05a3d905 | 1760 | status = -ENOMEM; |
95da310e AC |
1761 | } |
1762 | release_firmware(fw_p); | |
1da177e4 | 1763 | if (status) { |
a30fa793 AC |
1764 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
1765 | __func__, status); | |
1da177e4 LT |
1766 | return status; |
1767 | } | |
1768 | ||
441b62c1 | 1769 | dbg("%s - download successful", __func__); |
1da177e4 LT |
1770 | |
1771 | return 0; | |
1772 | } |